Home / 760,824.90-1,141,138.94-287,448.75

Finding the Fourth Proportional to 760,824.90, 1,141,138.94 and 287,448.75

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Solution

The fourth proportional to 760,824.90, 1,141,138.94 and 287,448.75 is: 431,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,824.90 : 1,141,138.94 = 287,448.75 : x
  2. Step 2: Convert to fraction form
    760,824.90/1,141,138.94 = 287,448.75/x
  3. Step 3: Cross multiply
    760,824.90x = 1,141,138.94 × 287,448.75
  4. Step 4: Simplify right side
    760,824.90x = 328,018,960,442.08
  5. Step 5: Solve for x
    x = 328,018,960,442.08/760,824.90
  6. Step 6: Final answer
    x = 431,135.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.